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    <p><span>NOTICE (August 2016):</span> CDIAC as currently configured and hosted by ORNL will cease operations on September 30, 2017. Data will continue to be available through this portal until that time. Data transition plans are being developed with DOE to ensure preservation and availability beyond 2017.</strong></p>
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Fossil CO<sub>2</sub> Emissions
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<a href="/trends/emis/glo_2014.html" title="Total estimated global carbon emissions from fossil-fuel burning, cement manufacture, and gas flaring in 2014">9,855 MMT Carbon</a>
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Global Temp Anomaly
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<a href="/trends/temp/hansen/land_ocean_trend.html" title="Global annual temperature anomaly from land and ocean meteorological stations in 2015">+0.86&deg;C / +1.55&deg;F</a>
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Global Sea Level Rise
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<a href="/trends/sea_level.html" title="Trend since 1993 in global mean sea level anomaly dervied from satellite data">+2.9 &plusmn; 0.4 mm/y</a>
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<img src="/images/temp_gauge.png" style="float:left;margin:0 0 0 5px;" class="show-large-only noprint" />

<h1 class="frontpage">Carbon Dioxide Information Analysis Center</h1>
<p>The Carbon Dioxide Information Analysis Center (CDIAC), located at the <a href="http://energy.gov" target="_blank">U.S. Department of Energy</a>'s (DOE) <a href="http://www.ornl.gov/" target="_blank">Oak Ridge National Laboratory</a> (ORNL), is the primary climate change data and information analysis center for DOE. CDIAC is supported by DOE's <a href="http://science.energy.gov/ber/research/cesd/" target="_blank">Climate and Environmental Sciences Division</a> within the <a href="http://science.energy.gov/ber/" target="_blank">Office of Biological and Environmental Research (BER)</a>.</p>

<p>CDIAC's data holdings include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon dioxide and other radiatively active trace gases; carbon cycle and terrestrial carbon management datasets and analyses; and global/regional climate data and time series.</p>

<p>CDIAC provides scientific and data management support for numerous projects including large-scale DOE ecosystem experiments like the <a href="http://ngee-arctic.ornl.gov/" target="_blank">Next-Generation Ecosystem Experiments</a>;  the <a href="http://ameriflux.lbl.gov/" target="_blank">AmeriFlux Network</a>, continuous observations of ecosystem level exchanges of CO<sub>2</sub>, water, energy and momentum at different time scales for sites in the Americas; the Ocean CO<sub>2</sub> Data Program of CO<sub>2</sub> measurements taken aboard ocean research vessels; and the <a href="http://hippo.ornl.gov/" target="_blank">HIPPO project</a>, which measured and is analyzing the atmospheric carbon cycle and greenhouse gas concentrations from pole to pole over the Pacific Ocean.</p>
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<h2><a href="whatsnew.html">Recent Data Activities</a></h2>

<p><a href="/GCP/methanebudget/2016/">Revised (V1.1) 2016 global methane budget estimates</a> from the Global Carbon Project are now available.</p>

<p>The <a href="/GCP/carbonbudget/2016/">2016 global carbon budget estimates</a> from the Global Carbon Project are now available.</p>

<p> Updated <a href="http://cdiac.ornl.gov/trends/emis/meth_reg.html">fossil fuel</a> CO<sub>2</sub> emissions estimates through 2013 are now available.</p>

<p>CDIAC has updated its <a href="http://cdiac.ornl.gov/trends/temp/hansen/hansen.html">presentation</a> of data from the <a href="http://data.giss.nasa.gov/gistemp/">NASA Goddard Institute for Space Studies Surface Temperature Analysis (GISTEMP),</a> which finds that 2015 was by far the warmest year in the modern temperature record.</p>

<p> CDIAC has published new <sup>13</sup>C-DIC data for the North Atlantic as <a href="http://cdiac.ornl.gov/oceans/ndp_096/NAC13v1.html">NDP-096.</a></p>

<p>The second set (glodapv2) of <a href="/oceans/GLODAPv2/">Global Ocean Data Analysis Project</a> data products are now available.</p>

<p><a href="/ndps/alegage.html">AGAGE</a> updates into 2015 are now available.</p>

<p style="text-align:right;"><a href="whatsnew.html">more...</a></p>
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<h2><a href="ftp://cdiac.ornl.gov/pub/" traget="_blank">Data Access</a></h2>
<p><a href="http://mercury.ornl.gov/cdiacnew/"><img src="/images/search.png" alt="image" title="Search" align="absmiddle" style="border:none;" /></a> <a href="http://mercury.ornl.gov/cdiacnew/">Search CDIAC Data</a>

<br /><a href="/frequent_data_products.html"><img src="/images/favorites.png" alt="image" title="Favorites" align="absmiddle" style="border:none;" /></a> <a href="/frequent_data_products.html">Frequently Used Data Products</a>

<br /><a href="/data_catalog.html"><img src="/images/database.png" alt="image" title="Catalog" align="absmiddle" style="border:none;" /></a> <a href="/data_catalog.html">View Entire CDIAC Catalog</a></p>
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    <h2 class="categories">Data Categories</h2>
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              <a class="box1">Atmosphere</a>
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            <a class="box1">Atmosphere</a>
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          <h3>Atmosphere</h3>
          <ul>
            <li><a href="http://cdiac.ornl.gov/tracegases.html">Atmospheric Trace Gases &amp; Aerosols</a></li>
            <li><a href="http://cdiac.ornl.gov/carbon_cycle_data.html">Carbon Cycle</a></li>
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              <a class="box2">Anthropogenic Emissions</a>
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            <a class="box2">Anthropogenic Emissions</a>
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          <h3>Anthropogenic Emissions</h3>
          <ul>
            <li><a href="http://cdiac.ornl.gov/trends/emis/meth_reg.html">Fossil-fuel CO<sub>2</sub> Emissions</a></li>
            <li><a href="http://cdiac.ornl.gov/land_use.html">Land-use and Ecosystems</a></li>
            <li><a href="http://cdiac.ornl.gov/trace_gas_emissions.html">Trace Gas Emissions</a></li>
            <li><a href="http://cdiac.ornl.gov/carbon_cycle_data.html">Carbon Cycle</a></li>
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              <a class="box3">Climate &amp; Meteorology</a>
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            <a class="box3">Climate &amp; Meteorology</a>
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          <h3>Climate &amp; Meteorology</h3>
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            <li><a href="http://cdiac.ornl.gov/climate/variables.html">Climate</a></li>
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              <a class="box4">Oceans</a>
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            <a class="box4">Oceans</a>
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          <h3>Oceans</h3>
          <ul>
            <li><a href="http://cdiac.ornl.gov/oceans/">Oceanic Trace Gases</a></li>
            <li><a href="http://cdiac.ornl.gov/carbon_cycle_data.html">Carbon Cycle</a></li>
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              <a class="box5">Terrestrial</a>
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            <a class="box5">Terrestrial</a>
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          <h3>Terrestrial</h3>
          <ul>
            <li><a href="http://cdiac.ornl.gov/carbon_cycle_data.html">Carbon Cycle</a></li>
            <li><a href="http://cdiac.ornl.gov/land_use.html">Land-use and Ecosystems</a></li>
            <li><a href="http://cdiac.ornl.gov/carbonmanagement/">Terrestrial Carbon Management</a></li>
            <li><a href="http://cdiac.ornl.gov/vegetation.html">Vegetation Response to CO<sub>2</sub> &amp; Climate</a></li>
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      <p>More about <a href="/data/">CDIAC Data</a></p>
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<em>This page was last modified: 03/03/17.</em>
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